Supervised Learning - Classification Week 8 Challenge

Answer 1:

Code is provided in Week-8.ipynb file

Answer 2 :

Advantages of KNN :

1. Simple and scalable.
2. Calculation time is less.
3. Effective for larger dataset.
4. It has relatively high accuracy.

Disadvantages of KNN :

1. Requires more memory for computation.
2. It's a lazy learning algorithm as it doesn't learn from training dataset instead, it simply memorises it.
3. Determining the value of K(number of nearest neighbours) is quite expensive,